1,K10,K20 2,accept all delivery way 3,5% discount for larger order 4,can finished according your tolerance tungsten carbide pellet is used for material grinding, which is more wear-resistant and can reduce impurity effectly.tungsten carbide pellet:the grade: k10/k20using virgin raw materiallong lifetimefor oil field and grinding tungsten carbide pelletsTypeDimensions and tolerance(mm) ...